feature: default RUBY_ENV variable for bin/console script
feature: default RUBY_ENV variable for bin/console script

problem:
- currently you are required to always provide the RUBY_ENV variable

solution: 
- defaults to "development" if not set
ddd-ruby/rdm,ddd-ruby/rdm,droidlabs/rdm,mindreframer/rdm,droidlabs/rdm,droidlabs/rdm,mindreframer/rdm